What if Earth's orbit ventured as far from the Sun as Pluto, and got as close to it as Venus?

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...

When the world woke up on Sunday, Sept. 29, Earth had an extra moon. 2024 PT5, a Yale shuttle-sized Asteroid, will orbit Earth until late November. This new “mini-moon” is a wayward asteroid, a space ...

X-37B started executing a series of aerobraking maneuvers to change from a highly elliptical orbit to a lower orbit. Reading time 2 minutes After seven test flights, Boeing is finally starting to open ...